First, different types of chefs have different time to finish their studies. For example, if you learn a pastry chef, you may be able to get started in a few months; If it is Chinese cooking, it usually takes at least one year to get started. If you want to learn more deeply, it will take two or three years.
Second, look at personal talent. There are always some people who are more talented than others in some things. If they are gifted at cooking, they will know a lot and learn much faster. On the contrary, if they have no talent, they will study for a longer time.
Third, look at individual efforts. The success of anything needs hard work. If you don't study hard, no matter how talented you are, the fertilization time will not be short. If more people have the same talent and make more efforts, the time required for getting started will be shorter.
Fourth, teach your teacher. This is the most important point. If the person who teaches you is experienced and skilled and can teach you without reservation, then you will be much easier on the road to learning cooking. Therefore, I suggest you go to a regular professional chef school to learn cooking, because the teachers in big brand chef schools are full-time and have many years of experience, so there will be no phenomenon of "teaching apprentices and starving masters", and teachers will teach students cooking without reservation.